Calculate the osmotic pressure in pascal exerted by a solution prepared by dissolving 1.0g of polymer of molar mass 185,000 in 450 mL of water at `37^@C`.

Determine the osmotic pressure of a solution prepared by dissolving 25 mg of K_2SO_4 in 2 liter of water at 25^@C , assuming that it is completely dissociated.

Assuming complete dissociation, calculate the expected freezing point of a solution prepared by dissolving 6g of Na_2SO_4 .10H_2O~ in 0.1 kg of water ( k_f for water= 1.86)

Calculate the boiling point of a solution prepared by adding 15.00g of NaCl to 250g water. (K_b for water = 0.512 K kg mol^-1, molar mass of NaCl, 58.44g mol mol^-1 .

Calculate the molarity of a solution containing 1g of NaOH in 250 mL of water.

2000 cm^3 of an aqueous solution of a protein contains 1.26 g of the protein. The osmotic pressure of such a solution at 300K is found to be 2.57 … 10^(-3) bar. Calculate the molar mass of the protein.

Calculate the amount of benzoic acid (C_6H_5COOH) required for preparing 250 mL of 0.15 M solution in methanol.

A solution of sucrose (molecular mass 342 u) is prepared by dissolving 0.84 g in 100g of water at 298K. Calculate the boiling point of water in the solution (K_b for water = 0.52 K kg mol^-1)

A solution of sucrose (molecular mass 342 u) is prepared by dissolving 0.84 g in 100g of water at 298K. Calculate the freezing point of water in the solution. (K_f for water = 1.86 K kg mol^-1)

100 g of liquid A (molar mass 140 g mol^-1) was dissolved in 1000g of liquid B (molar mass 180 g mol^-1) . The vapour pressure of pure liquid B was found to be 500 torr: Calculate the vapour pressure of pure liquid A and its vapour pressure in the solution if the total vapour pressure of the solution is 475 Torr.

A solution containing 15g urea (molar mass = 60g/mol) per litre of solution in water is isotonic with the solution of glucose (molar masss 180g//mol ) in water calculate the mass of glucose present in one litre of its solution,.